transmission temperature sensor on 1994 Dodge Ram 1500

where is trans temp sensor located i am getting code #37=trans temp sensor high i purchased new one and found where it goes in coolant line even found wire tied up truck never had one is there also temp sensor inside tranny will it hurt to install new one in line or what where is code#37 coming from

Your truck does not actually have a trans temp sensor. The code is for 3 different symptoms depending on the vehicle 1. Trans temp sensor voltage high. 2. Trans temp sensor voltage low. 3. Torque converter clutch solenoid CKT faulty. The temp sensor is on 3/4 and 1 ton trucks. So most likely the code you have is for the Torque converter solenoid